Earlier quoted context omitted.
With the recommendation and consultation of the representative for the district and the two Senators for the state. Who clearly have something to do with this. How else can you explain east texas being the venue of choice?
A friend of mine who's a patent lawyer explained it to me once. Some time back the chief judge started putting patent cases at the top of his docket so his district became known as a having "rocket docket" and began attracting patent cases from across the country. A cottage industry sprung up in the area and the rest is history.
NPR (well, technically This American Life) did a special on it a couple years ago[0]. It's fun to listen to. It may not tell the whole story, but it at least paints a decent picture.
[0] http://www.thisamericanlife.org/radio-archives/episode/441/w...